.join {
    text-align: center;
    vertical-align: center;
    height: 60rpx;
    margin: 0 100rpx 0 100rpx;
    font-size: 40rpx;
    line-height: 60rpx;
    background-color: rgba(158, 153, 185, 1);
    border-radius: 30rpx;
}